Re: Platy breeding question

In article <[EMAIL PROTECTED]>, Greg G wrote:
> On Mon, 24 Nov 2003 15:55:46 -0600, "Keith E. Loyd"
> I have 7 sunset platies in my 75G planted tank, and I started with a
> M/F pair.  They were the first inhabitants of the tank two years ago.
> The female died during childbirth after the third brood.  Each brood
> had two survivors.  I made no effort to segregate the young from the
> tank population, so I don't know how many may have been eaten.  They
> are born "on the run", and will seek shelter among the plants
> immediately.
> 
> All but one of the young turned out to be male.  I surely pity the
> lone female when it reaches "puberty."  The young males chase the
> oldest male around constantly trying to 'mate' with him - they are
> obviously quite confused.  ;-)

Is this an environmental thing? As far as we can tell all of our platy
fry are female. Might it be temperature-related?

-Paul